Phage Interaction with Vibrio Cholerae

Abstract
The role of temperate phage .beta. in determining the serology and eltor-lytic phage sensitivity in V. cholerae was investigated. The only serological change found in 6 host strains was a change to roughness. This was accompanied by failure to absorb several of the lytic phages. Various phage-sensitivity changes were induced by phage .beta. in 2 hosts at the post-adsorption level. In strain HP47, 3 types of progeny were obtained of which 1 was universally resistant to lytic phages. These untypable lysogens were culturally stable but gave rise to segregants of the rare phage-type 6 on single colony selection.

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